Insects. 591 



of the clypeus, mandibles and antenna), ferruginous : thorax, collar, 

 tubercles, and two spots on the scutellum, yellow : the tegulae ferru- 

 ginous ; the legs ferruginous ; the coxa? black, their extreme apex 

 ferruginous ; the four anterior femora black at their base beneath, the 

 posterior pair black, ferruginous at their apex : abdomen black, the 

 first segment with a narrow abbreviated and interrupted yellow fascia, 

 sometimes reduced to two minute yellow dots, at other times obso- 

 lete ; the second and third with an interrupted fascia, the fourth with 

 an entire fascia, and the fifth entirely yellow ; beneath, the second 

 segment has two oblique yellow lines, the third and fourth with a 

 yellow fascia : in small specimens the oblique lines, and one or both 

 the yellow fasciae, are obsolete. 



Male, (3 to 5 lines). Black : the labrum, margin of the clypeus 

 and mandibles yellow, the latter fuscous at the tips ; the scape of the 

 antennae yellow in front, sometimes only a yellow line, or only the 

 extreme apex rufous, black behind ; three or four following segments 

 generally slightly stained above, sometimes entirely rufous : the 

 thorax has the tubercles, collar on both sides, the tegulae more or 

 less, and two spots on the scutellum, yellow ; none of these characters 

 are constant, one or more, or all, are sometimes obsolete : legs rufous ; 

 all the coxae black ; the anterior and intermediate femora black be- 

 neath, the posterior have a rufous line above, and also rufous at the 

 apex : abdomen, first segment has a narrow interrupted yellow fascia, 

 the five following have yellow fasciae, the first and second interrupted ; 

 the first segment is sometimes immaculate ; all the segments beneath, 

 the first excepted, have yellow fasciae, the first frequently interrupted 

 more or less ; in small specimens one or more of the fasciae disappear. 

 The Apis alternata of Kirby is a variety of this male, in which the 

 two spots on the scutellum are obsolete 



This species seems to be abundant everywhere : it appears in April. 

 I have observed it entering the burrows of Andrena nigro-aenea and 

 of Eucera longicornis. 



Sp. 4. NOMADA CORNIGERA. 



Apis cornigera, Kirby's Mon. 



Female, (length 4 to 5 J lines). Head black ; mandibles, labrum 

 and antennae rufous, a bifurcate rufous patch on the clypeus, a minute 

 tooth on the lip : the thorax has the collar, tubercles, tegulae, and 

 two spots on the scutellum, yellow ; an indistinct rufous spot beneath 

 the tegulae : legs ferruginous ; coxae black, rufous at their apex ; 

 the anterior and intermediate femora have a black dot beneath 



